Astronet Поиск по астрономическим сайтам English Russian
       
        Точная форма слов   О проекте   Сайты   Справка
Найдено документов: 92000 (143 сайтов) ---- Время поиска: 0.11сек.   

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | След.

Показаны документы, содержащие фрагменты текста из документа
http://www.ipa.nw.ru/PAGE/EDITION/transaction/transaction_ann19/89.htm.

1. Trigonometry--what it is good for?
... Sighting the telescope, first at the tree and then at pole B, you measure the angle A of the triangle ABC, equal to the difference between the numbers you have read from the azimuth plate.. ... Why triangles? ... One large surveying project of the 1800s was the " Great Trigonometric Survey " of British India. ... Everest was the one who commisioned and first used those giant theodolites; they are now on display in the Museum of the Survey of India in Dehra Dum. ... Everest . ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Itrig1.htm -- 9.1 Кб -- 18.07.2004
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Itrig1.htm -- 9.1 Кб -- 22.12.2007
Похожие документы

2. Parallax
... The greater the distance, the smaller the parallax. ... That triangle has the same proportions as the much larger triangle ABC, and therefore, if the distance B'C to the thumb is 10 times the distance A'B' between the eyes, the distance AC to the far landmark is also 10 times the distance AB. ... The most distant objects our eyes can see are the stars, and they are very far indeed: light which moves at 300,000 kilometers (186,000 miles) per second, would take years, often many years, to reach them. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Sparalax.htm -- 7.1 Кб -- 21.12.2007
Похожие документы

3. http://www.stsci.edu/institute/conference/acs_hls/reid_w_anim.pdf
... Starcounts 101 Galactic halo ­ science issues Observational strategies Starcounts 101 · N(d) (d) . ... M/H], luminosity ) distance The disk is well-sampled at bright magnitude (V 19) The halo is well sampled at faint magnitudes (V 20) Stars outnumber galaxies V 20 Galaxies outnumber stars V 21 high spatial resolution is essential at faint magnitudes HST is favoured for studies of the Galactic Halo Stellar Number Densities Baseline ­ Keck LRIS observations of PSR1640 ...
[ Текст ]  Ссылки http://www.stsci.edu/institute/conference/acs_hls/reid_w_anim.pdf -- 244.1 Кб -- 28.03.2006
Похожие документы

4. Ionized Hydrogen at Large Galactocentric Distances
... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... We summarize recent attempts to detect warm ionized gas at large galactocentric distances. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/pasa/14_1/hawthorn/paper/index.html -- 51.0 Кб -- 08.04.2016
Похожие документы
Еще в разделе: (Показать все результаты (>16302) - www.atnf.csiro.au/ )

5. The AstroStat Slog Mahalanobis distance
... Posts tagged ?Mahalanobis distance? ... It bears the name of its inventor, Prasanta Chandra Mahalanobis. ... Therefore, under different names, I believe that the Mahalanobis distance is frequently applied in exploring and analyzing astronomical data. ... MADS] Mahalanobis distance? Tags: LDA , MADS , Mahalanobis , Mahalanobis distance , multivariate , outliers , PCA . ... 6 Comments . ... Entries RSS . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/mahalanobis-distance/index.html -- 19.6 Кб -- 01.03.2014
Похожие документы

6. http://www.armaghplanet.com/pdf/AstroTopics/Measuring%20the%20Universe/Parallax.pdf
... After all we cannot send a probe to the star Altair to confirm that it is 17 light years away. ... The "Bessel determined that the star 61 Cygni was about ten light years away" Earth goes around the Sun in one year, so in six month it is in the opposite position in its orbit. ... In 1838 Bessel determined that the star 61 Cygni had a parallax of 0.314 arcseconds and therefore the star was about ten light years away (today the distance is more precisely measured to be 11.4 light years). ...
[ Текст ]  Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Measuring%20the%20Universe/Parallax.pdf -- 102.6 Кб -- 20.09.2011
Похожие документы

7. http://www.naic.edu/vscience/schedule/tpfiles/PopovtagV2836tp.pdf
Proposal Identification No.: V2836 Date Received: 2013-Mar-01 12:33:07 Technical Page This proposal has not been submitted before. Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular VLBI Galactic 30 hrs Hours 1hr Studies of Scattered Pulsars on the Longest Baselines We propose observations of strong pulsars on the longest VLBI baselines yet attained, up to 300,000 km. ...
[ Текст ]  Ссылки http://www.naic.edu/vscience/schedule/tpfiles/PopovtagV2836tp.pdf -- 45.1 Кб -- 18.03.2013
Похожие документы

8. ASP: Determining the Earth-Sun Distance Using Mars
home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Determining the Earth-Sun Distance Using Mars . ... For more than a century, astronomers tried to measure the average Earth-Sun distance, known as the astronomical unit (AU), by observing rare transits of Venus. ... By measuring this displacement (parallax) and knowing the length of the baseline between the two observing sites, one can determine Mars?s distance. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/pubs/mercury/32_04/sidebar.html -- 14.8 Кб -- 20.04.2012
Похожие документы

9. http://astro.uni-altai.ru/AFgalleries.html
[ Сохраненная копия ]  Ссылки http://astro.uni-altai.ru/AFgalleries.html -- 1.1 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://astroclub.ru/ -- 1.2 Кб -- 09.04.2016
[ Сохраненная копия ]  Ссылки http://astronomy.tomsk.ru/google.php -- 1.3 Кб -- 01.10.2012
Похожие документы

10. Vladimir Marsakov Abstracts
Authors: V.A. Marsakov , Yu.G. Shevelev , . ... Systematic effects of random errors in distances and reddening, metallicity and luminosity indices of F stars from catalogues with photometry are investigated. ... Исследуется систематические эффекты случайных ошибок в определениях расстояний, покраснений, индексов металличности в светимости F -звезд из каталогов с -фотометрией. ...
[ Сохраненная копия ]  Ссылки http://ip.rsu.ru/~marsakov/abs/abst17.htm -- 4.9 Кб -- 02.02.2007
Похожие документы
Еще в разделе: (Показать все результаты (>58) - ip.rsu.ru/ )

11. On current distance scales for open clusters
... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...
[ Сохраненная копия ]  Ссылки http://www.inasan.rssi.ru/~dwiebe/abstracts/dist.html -- 4.2 Кб -- 27.09.2012
Похожие документы
Еще в разделе: (Показать все результаты (>29) - www.inasan.rssi.ru/ )

12. AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb
... Home Education Classes AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . ... Classes . AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... This MonthтАЩs Sky тАУ April 2016 . ... Dec. ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ...
[ Сохраненная копия ]  Ссылки http://www.aaa.org/education/classes/aaa-winter-astronomy-class-measuring-distances-in-space-dec-2015-feb-2016/ -- 100.6 Кб -- 10.04.2016
Похожие документы
Еще в разделе: (Показать все результаты (>613) - www.aaa.org/ )

13. Distances
. Next: Diameters Up: Derived parameters Previous: Absolute magnitudes Contents . d_stars Compute distance D from parallax, absolute magnitude, or both. Christian Hummel 2015-04-28
[ Сохраненная копия ]  Ссылки http://www.eso.org/~chummel/oyster/manual/node121.html -- 3.0 Кб -- 28.04.2015
Похожие документы

14. burn-off, eastern slope of Stromlo with lights of Canberra in distance, Oct...
... Stromlo Reconstruction . ... burn-off, eastern slope of Stromlo with lightтАж . ... Title: burn-off, eastern slope of Stromlo with lights of Canberra in distance, Oct 2004 . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/gallery3/index.php/reconstruction/album31/burnoffOct04 -- 27.4 Кб -- 11.04.2016
Похожие документы

15. A quelle distance sont les Гїtoiles ? | Ciel et Espace
... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . ... des interviews, des portraits . les plus belles images de l'Univers dГїcryptГїes pour vous . ... des pages consacrГїes Г la publication de vos photos Mais c'est aussi une vraie communautГї avec laquelle partager votre passion et nourrir votre curiositГї. Accueil Г? la une A quelle distance sont les Гїtoiles ? ... A quelle distance sont les Гїtoiles ? ... 23/05/2014 - Les cratГЕres de Mars sont-ils Г vendre ? ...
[ Сохраненная копия ]  Ссылки http://www.cieletespace.fr/a-la-une/10697 -- 29.6 Кб -- 09.04.2016
Похожие документы

16. The Stellar Content and Distance to the Nearby Blue Compact Dwarf Galaxy
... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/staff/viva/Book/Galaxies/LG/NGC6789/NGC6789_Engl2.html -- 5.2 Кб -- 19.11.2010
Похожие документы
Еще в разделе: (Показать все результаты (>187) - www.astro.spbu.ru/ )

17. Soyuz panel: Distance and speed indicator
[ Сохраненная копия ]  Ссылки http://www.vsm.host.ru/soyuzpan/dsi.htm -- 1.2 Кб -- 24.05.1999
Похожие документы

18. Numbers and distances
... The absolute magnitude of the RCBs in the LMC and the small number of Galactic RCBs implies that they are very rare stars. Together with statistics for related stars, the total number of hydrogen-deficient stars in the Galaxy is estimated to be about 1000. Whilst the luminosity of RCBs is similar to that of other low-mass stars as they evolve rapidly from the asymptotic RED GIANT branch to become WHITE DWARFS , their frequency is much lower. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/rcrb_rev/node7.html -- 3.7 Кб -- 16.03.2000
Похожие документы

19. HyperLEDA documentation: compilation of distance measurements (a007)
Compilation of distance measurements . HyperLeda home | Documentation | Search by name | Search near a position | ... SQL Search | Search an object in the distance catalogue . This catalog (table a007 in the database) presents the compilation of published distance mesurements using photometric distance indicators. Photometric modulus. Error of modulus measurement. The method used to determine the distance is coded for each measurement as follow: . HyperLeda . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/fetch/HL/leda/rawcat/a007.html -- 3.6 Кб -- 23.12.2013
Похожие документы

20. Astronomical Distances, AstroGuide Listing
The AstroGuide . ... AstroGuide | ... AstroGuide Listing . Login . See many more Astronomy Listings by: Category or Alphabet . ... Last Update July 27, 2006 . Listed Since July 15, 1998 . ... Web Site . http://janus.astro.umd.edu/astro/distance/ . ... Web . www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/astroguide/ag54.html -- 12.4 Кб -- 09.04.2016
Похожие документы

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | След.

Rambler's Top100 RFBR Яндекс цитирования